EP 1333604 A1 20030806 - DIVERSITY RECEIVER AND ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED SIGNAL RECEIVING METHOD
Title (en)
DIVERSITY RECEIVER AND ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED SIGNAL RECEIVING METHOD
Title (de)
DIVERSITY-EMPFÄNGER UND ORTHOGONAL-FREQUENZMULTIPLEX-SIGNALEMPFANGSVERFAHREN
Title (fr)
RECEPTEUR EN DIVERSITE ET PROCEDE DE RECEPTION D'UN SIGNAL MULTIPLEX ANALOGIQUE ORTHOGONAL
Publication
Application
Priority
- JP 0109211 W 20011019
- JP 2000342808 A 20001110
Abstract (en)
A technique for stably receiving an orthogonal frequency division multiplexed signal by means of a simple structure. Delay circuits 9 - 11 add delay times to the signals simultaneously received by antennas 1 - 4 in such a way that the delay time difference between any two signals is the reciprocal or more of the bandwidth allocated to one subcarrier of orthogonal frequency division multiplex. Thus, the signal synthesized by a mixer 12 can be assumed to be substantially equivalent to the received signal in a multipath environment. Since the delay time differences among the signals simultaneously received by the antennas 1 - 4 are sufficiently shorter than the length of the guard interval section, the margin prepared for actual arrival of a delay wave because of multipath is sufficiently ensured. <IMAGE>
IPC 1-7
IPC 8 full level
H04B 7/08 (2006.01); H04J 11/00 (2006.01); H04L 1/06 (2006.01); H04L 27/26 (2006.01)
CPC (source: EP US)
H04B 7/084 (2013.01 - EP US); H04B 7/0894 (2013.01 - EP US); H04L 1/06 (2013.01 - EP US); H04L 27/2647 (2013.01 - EP US); H04B 7/0814 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1333604 A1 20030806; EP 1333604 A4 20100127; DE 01976784 T1 20040415; JP 2002152170 A 20020524; JP 3639521 B2 20050420; US 2004038651 A1 20040226; US 7095995 B2 20060822; WO 0239633 A1 20020516
DOCDB simple family (application)
EP 01976784 A 20011019; DE 01976784 T 20011019; JP 0109211 W 20011019; JP 2000342808 A 20001110; US 41622903 A 20030508